CN102602988A - Method for preparing lithium titanate (Li4Ti5O12) with large specific area - Google Patents
Method for preparing lithium titanate (Li4Ti5O12) with large specific area Download PDFInfo
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- CN102602988A CN102602988A CN2012100650848A CN201210065084A CN102602988A CN 102602988 A CN102602988 A CN 102602988A CN 2012100650848 A CN2012100650848 A CN 2012100650848A CN 201210065084 A CN201210065084 A CN 201210065084A CN 102602988 A CN102602988 A CN 102602988A
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- Prior art keywords
- lithium
- preparation
- lithium titanate
- titanate
- bigger serface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 35
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910002986 Li4Ti5O12 Inorganic materials 0.000 title abstract 4
- 239000010936 titanium Substances 0.000 claims abstract description 53
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 18
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 18
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 4
- 239000000376 reactant Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000002360 preparation method Methods 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000012266 salt solution Substances 0.000 claims description 7
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- -1 alkali metal titanate Chemical class 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 claims description 2
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 2
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 claims description 2
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 claims description 2
- 239000011259 mixed solution Substances 0.000 claims description 2
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 3
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 abstract 3
- 229910003890 H2TiO3 Inorganic materials 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000003980 solgel method Methods 0.000 description 3
- 229910052596 spinel Inorganic materials 0.000 description 3
- 239000011029 spinel Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000011258 core-shell material Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000003836 solid-state method Methods 0.000 description 2
- 238000000967 suction filtration Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a method for preparing lithium titanate (Li4Ti5O12) with a large specific area. The method includes using titanic acid H2TiO3, H4Ti5O12 or H2Ti2O5 as a titanium source, adding the titanic acid into 2-20M of soluble lithium salt aquatic liquor, and leading the titanic acid and the lithium salt liquor to be sufficiently mixed under the water bath and vacuum condition with the temperature ranging from 60 DEG C to 100 DEG C; and placing the mixed reactant liquid in a hydrothermal kettle, realizing hydrothermal reaction for 1 to 12 hours at the temperature ranging from 120 DEG C to 220 DEG C, taking out a reaction product, filtering the reaction product and obtaining the target object Li4Ti5O12. The specific surface area of the lithium titanate product ranges from 50m2/g to 220m2/g, the Li4Ti5O12 has the advantages of large specific surface area and excellent lithium battery performance, and a process of the method is environment-friendly, is low in energy consumption and applicable to industrial application, and the like.
Description
Technical field
The invention belongs to the preparation field of ceramic, be specifically related to a kind of preparation method of bigger serface lithium titanate with spinel structure.
Background technology
Lithium titanate material (Li
4Ti
5O
12) as a kind of negative material of lithium ion battery; Be a kind of " zero strain material "; Compare and business-like carbon material; Characteristics with high security, high stability, long lifetime and environmental protection will be as the negative material of lithium ion battery of new generation and be widely used in new-energy automobile, battery-operated motor cycle and require high security, high stability and macrocyclic Application Areas.
We know that the nano material and the performance of different-shape have close ties.According to bibliographical information, the lithium titanate of the vesicular structure of high-specific surface area helps improving the contact area of electrode and electrolytic solution, thereby promotes the performance of lithium titanate.And the method for synthetic lithium titanate adopts high temperature solid-state method and sol-gel method mostly at present.High temperature solid-state method is simple to operate, is easy to industriallization, but the product particle is grown up easily under pyroreaction, and pore structure is prone to cave in, and can cause the lithium titanate specific surface area very little.Sol-gel method needs costliness and with serious pollution organic alkoxide as presoma, and complex process is difficult to scale operation.
The present invention aims to provide a kind of technology for preparing the bigger serface lithium titanate, technology environmental protection, low, the suitable industrial applications of energy consumption.
Summary of the invention
The objective of the invention is on the basis of existing technology, a kind of preparation bigger serface lithium titanate (Li is provided
4Ti
5O
12) method.The Li that the inventive method obtains
4Ti
5O
12Having bigger specific surface area, is 50 ~ 220 m
2/ g; And in the preparation process, not relating to organism, preparation technology has advantages such as environmental protection, low, the suitable industrial applications of energy consumption.
Realize that the object of the invention can adopt following technical scheme:
A kind of bigger serface lithium titanate (Li
4Ti
5O
12) the preparation method,, may further comprise the steps as titanium source and lithium source with metatitanic acid and solubility lithium salts:
1) metatitanic acid is added in 2 ~ 20M solubility Aqueous Lithium Salts, under 60 ~ 100 ℃ of water-baths, vacuum condition, stirring or ultra-sonic dispersion make metatitanic acid and lithium salt solution thorough mixing;
2) the reactant mixed solution places in the water heating kettle, 120 ~ 220 ℃ of hydro-thermal reactions 1 ~ 12 hour, takes out reaction product, filters, and makes object Li
4Ti
5O
12
Described metatitanic acid is selected from H
2TiO
3, H
4Ti
5O
12, H
2Ti
2O
5Perhaps its hydrate.
Described metatitanic acid can mix the alkali metal titanate with laminate structure with acid solution, stirring reaction under room temperature gets metatitanic acid after the filtration.For making titanium of the present invention source, alkali metal titanate can be selected from K
2TiO
3, NaKTiO
3, Na
4Ti
5O
12Perhaps K
2Ti
2O
5In one or more.
The solid-to-liquid ratio of described metatitanic acid and lithium salt solution (g/mL) is 1:5 ~ 1:20.
Described lithium salts is the solubility lithium salts, comprises in lithium nitrate, Lithium Hydroxide MonoHydrate, Lithium Acetate or its hydrate one or more.
Described step 2) in, preferred 120 ~ 180 ℃ of hydrothermal temperature.
Step 2) in, water heating kettle can be put into baking oven or process furnace, adopts the mode of baking oven or process furnace heating to reaction energy to be provided, and also can directly adopt the reaction kettle with heating function to react.
Step 2) in, after reaction product was filtered, the lithium salt solution that obtains can use after adding a certain amount of lithium salts repeatedly.
According to the inventive method, the Li that makes
4Ti
5O
12Specific surface area be 50 ~ 220 m
2/ g.Under the optimum condition, the Li that makes
4Ti
5O
12Specific surface area can reach 90 ~ 220 m
2/ g.
Beneficial effect of the present invention comprises:
1, select for use metatitanic acid with low cost, as to be easy to get, to have special construction as the titanium source, in the preparation process, do not adopt organism, the masterplate method that relative traditional preparation process porous material is adopted has environmental protection, cheap, the easy industrialized advantage of preparation cost.
2, the resulting Li of the inventive method
4Ti
5O
12Have bigger specific surface area,, when high-power discharging and recharging, have the high advantage of capacity, and the energy conservation rate after the 40C circulation 1000 times can maintain 94% (Fig. 3 and Fig. 4) as the cathode of lithium battery active material.
Describe the present invention below in conjunction with specific embodiment.Protection scope of the present invention is not exceeded with embodiment, but is limited claim.
Description of drawings
Fig. 1 embodiment 1 obtains Li
4Ti
5O
12The BET isothermal curve.
Fig. 2 embodiment 1 obtains Li
4Ti
5O
12FESEM figure.
The Li that Fig. 3 the inventive method makes
4Ti
5O
12As the stability diagram of negative active core-shell material under different charge-discharge velocities.
The Li that Fig. 4 the inventive method makes
4Ti
5O
12As the charging and discharging graphic representation of negative active core-shell material after 40C circulation 1000 times.
Embodiment
According to the method for the invention, utilize metatitanic acid to carry out hydro-thermal reaction under certain condition as titanium source and lithium salts, the lithium titanate product that this method obtains is that specific surface area is 50 ~ 220m
2The Li of the spinel structure of/g
4Ti
5O
12, this material has the capacity height when high-power discharging and recharging, and the energy conservation rate after the 40C circulation 1000 times can maintain 94% advantage.The masterplate method that traditional relatively preparation porous material is adopted has environmental protection, cheap, the easy industrialized advantage of preparation cost.
With 5g K
2TiO
3Mix with the 1M hydrochloric acid soln of 200ml, room temperature is carried out IX, and 2 hours after-filtration obtain compound H
2TiO
3With 3g H
2TiO
3Place the lithium hydroxide solution of 2M, stir or ultrasonic mixing, mix in order to make, be blended in vacuumize and the condition of 100 ℃ of water-baths (30 minutes) under carry out.Reactant behind the thorough mixing is placed water heating kettle, put into 120 ℃ of insulations of retort furnace after 10 hours, suction filtration, washing get Li
4Ti
5O
12
The Li that obtains
4Ti
5O
12BET and FESEM characterize like Fig. 1, shown in Figure 2 its BET specific surface area 220 m
2/ g; Pore volume 0.107m
3/ g; Mean pore size 3.3 nm.
According to embodiment 1 essentially identical method, adopt H
4Ti
5O
12Or H
2Ti
2O
5Be the titanium source, change lithium source and reaction conditions, make the Li of different specific surface areas
4Ti
5O
12, actual conditions and product characteristic are seen table 1.
Comparative Examples 1
Method by embodiment 1 makes titanium source H
2TiO
3, with 3g H
2TiO
3Place the lithium nitrate solution of 14M, directly reaction mixture is placed water heating kettle, put into 180 ℃ of insulations of retort furnace after 2 hours, suction filtration, washing get Li
4Ti
5O
12Prepared product characteristic is seen table 1.
Comparative Examples 2,3
With H
4Ti
4O
9Or H
2Ti
3O
7Be the titanium source, by preparing lithium titanate with embodiment 1 essentially identical method, actual conditions and product characteristic are seen table 1.
The preparation condition of table 1 embodiment 2～5 and Comparative Examples and product characteristic
Can find out by embodiment and Comparative Examples 1, mix under the water bath condition for obtaining large specific surface Li
4Ti
5O
12Play keying action.Can find out that by embodiment and Comparative Examples 2,3 metatitanic acid of not all structure can obtain the Li of bigger serface
4Ti
5O
12
Can find out that by embodiment and Comparative Examples the invention provides a kind of preparation specific surface area is 50 ~ 200m
2The Li of the spinel structure of/g
4Ti
5O
12Method.Among the present invention, the crystalline structure of mixing and metatitanic acid is to obtain bigger serface Li under 60 ~ 100 ℃ the water bath condition
4Ti
5O
12Important factor.Because preparation technology of the present invention is non-masterplate and non-sol-gel method, has environmental protection, advantage of simple technology, and the Li that obtains
4Ti
5O
12Material lithium electrical property is excellent.
Claims (9)
1. bigger serface lithium titanate (Li
4Ti
5O
12) the preparation method, it is characterized in that,, may further comprise the steps as titanium source and lithium source with metatitanic acid and solubility lithium salts:
1) metatitanic acid is added in the aqueous solution of solubility lithium salt solution of 2 ~ 20M, under 60 ~ 100 ℃ of water-baths, vacuum condition, stir or ultra-sonic dispersion makes metatitanic acid and lithium salt solution thorough mixing;
2) the reactant mixed solution places in the water heating kettle, 120 ~ 220 ℃ of hydro-thermal reactions 1 ~ 12 hour, takes out reaction product, filters, and makes object Li
4Ti
5O
12
2. bigger serface lithium titanate (Li according to claim 1
4Ti
5O
12) the preparation method, it is characterized in that the specific surface area of the lithium titanate that said method makes is 50 ~ 220 m
2/ g.
3. bigger serface lithium titanate (Li according to claim 1 and 2
4Ti
5O
12) the preparation method, it is characterized in that described metatitanic acid is selected from H
2TiO
3, H
4Ti
5O
12, H
2Ti
2O
5Perhaps its hydrate.
4. bigger serface lithium titanate (Li according to claim 3
4Ti
5O
12) the preparation method, it is characterized in that described metatitanic acid is mixed with acid solution by the alkali metal titanate with laminate structure, stirring reaction under room temperature makes after the filtration; Alkali metal titanate is K
2TiO
3, NaKTiO
3, Na
4Ti
5O
12Perhaps K
2Ti
2O
5In one or more.
5. bigger serface lithium titanate (Li according to claim 1 and 2
4Ti
5O
12) the preparation method, it is characterized in that the solid-to-liquid ratio of described metatitanic acid and lithium salt solution (w/v) is 1:5 ~ 1:20.
6. bigger serface lithium titanate (Li according to claim 1 and 2
4Ti
5O
12) the preparation method, it is characterized in that described solubility lithium salts is selected from one or more in lithium nitrate, Lithium Hydroxide MonoHydrate, Lithium Acetate or its hydrate.
7. bigger serface lithium titanate (Li according to claim 1
4Ti
5O
12) the preparation method, it is characterized in that described step 2) in, hydrothermal temperature is 120 ~ 180 ℃.
8. bigger serface lithium titanate (Li according to claim 1 and 2
4Ti
5O
12) the preparation method, it is characterized in that described step 2) in, after reaction product was filtered, the lithium salt solution that obtains used after adding a certain amount of lithium salts repeatedly.
9. bigger serface lithium titanate (Li according to claim 2
4Ti
5O
12) the preparation method, it is characterized in that the specific surface area of the lithium titanate that said method makes is 90 ~ 220 m
2/ g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210065084.8A CN102602988B (en) | 2012-03-14 | 2012-03-14 | Method for preparing lithium titanate (Li4Ti5O12) with large specific area |
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| Publication Number | Publication Date |
|---|---|
| CN102602988A true CN102602988A (en) | 2012-07-25 |
| CN102602988B CN102602988B (en) | 2014-05-21 |
Family
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274454A (en) * | 2013-05-19 | 2013-09-04 | 吉林大学 | Hydrothermal synthesis method of micro-emulsion of nano lithium titanate |
| CN104282895A (en) * | 2014-09-17 | 2015-01-14 | 山东精工电子科技有限公司 | Negative electrode material applied to lithium ion battery and preparation method of negative electrode material |
| CN104370303A (en) * | 2014-11-27 | 2015-02-25 | 陕西科技大学 | Preparing method of lithium titanate with good rate performance |
| CN107055595A (en) * | 2017-04-17 | 2017-08-18 | 黄正平 | A kind of preparation method of lithium cell cathode material |
| CN109860580A (en) * | 2019-02-28 | 2019-06-07 | 蜂巢能源科技有限公司 | Positive electrode and preparation method thereof, positive plate and lithium-sulfur cell |
| CN111312997A (en) * | 2019-03-13 | 2020-06-19 | 北京纳米能源与系统研究所 | Composite material and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486488A (en) * | 2009-01-20 | 2009-07-22 | 河南大学 | Preparation of nano spinelle lithium titanate |
| CN101948134A (en) * | 2010-10-12 | 2011-01-19 | 中南大学 | Method for preparing lithium titanate powder |
-
2012
- 2012-03-14 CN CN201210065084.8A patent/CN102602988B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486488A (en) * | 2009-01-20 | 2009-07-22 | 河南大学 | Preparation of nano spinelle lithium titanate |
| CN101948134A (en) * | 2010-10-12 | 2011-01-19 | 中南大学 | Method for preparing lithium titanate powder |
Non-Patent Citations (2)
| Title |
|---|
| YUBAO ZHAO ET AL.: "Preparation of nanostructured Li4Ti5O12 by hydrothermal ion exchange of protonated titanate", 《ADVANCED MTAERIALS RESEARCH》 * |
| 吴凤娇等: "二次水热法制备Li4Ti5O12", 《第29届全国化学与物理电源学术年会论文集》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274454A (en) * | 2013-05-19 | 2013-09-04 | 吉林大学 | Hydrothermal synthesis method of micro-emulsion of nano lithium titanate |
| CN104282895A (en) * | 2014-09-17 | 2015-01-14 | 山东精工电子科技有限公司 | Negative electrode material applied to lithium ion battery and preparation method of negative electrode material |
| CN104370303A (en) * | 2014-11-27 | 2015-02-25 | 陕西科技大学 | Preparing method of lithium titanate with good rate performance |
| CN107055595A (en) * | 2017-04-17 | 2017-08-18 | 黄正平 | A kind of preparation method of lithium cell cathode material |
| CN109860580A (en) * | 2019-02-28 | 2019-06-07 | 蜂巢能源科技有限公司 | Positive electrode and preparation method thereof, positive plate and lithium-sulfur cell |
| CN109860580B (en) * | 2019-02-28 | 2021-04-20 | 蜂巢能源科技有限公司 | Positive electrode material, preparation method thereof, positive plate and lithium-sulfur battery |
| CN111312997A (en) * | 2019-03-13 | 2020-06-19 | 北京纳米能源与系统研究所 | Composite material and preparation method and application thereof |
| CN111312997B (en) * | 2019-03-13 | 2021-07-13 | 北京纳米能源与系统研究所 | Composite material and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN102602988B (en) | 2014-05-21 |
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Effective date of registration: 20201127 Address after: 213000 first floor, comprehensive building, Changzhou Tianning hi tech entrepreneurship service center, 95 Fuyang Road, Tianning District, Changzhou City, Jiangsu Province Patentee after: Changzhou Taite New Material Technology Co., Ltd Address before: 200092 No. 69 Jinxi West Road, Shanghai, Yangpu District Patentee before: Bo Ti (Shanghai) new Mstar Technology Ltd. |